AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2024-12-23 14:32:56 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity

drm/amd/display: Null check aconnector in event_property_validate

Browse Source 
[Why]
previously event_property_validate was only called after we enabled the display.
But after "Refactor HDCP to handle multiple displays per link" this function
can be called at any time. In certain cases we don't have a aconnector

[How]
Null check aconnector and exit early. This is ok because we only need to check the
ENABLED->DESIRED transition if a connector exists.

Fixes: b1abe5586f ("drm/amd/display: Refactor HDCP to handle multiple displays per link")
Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Reviewed-by: Zhan Liu <zhan.liu@amd.com>
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Bhawanpreet Lakha 2019-11-25 10:34:13 -05:00 committed by Alex Deucher
parent 58e8c603b8
commit 79c4ac0d75
1 changed files with 3 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c
View File

@ -225,6 +225,9 @@ static void event_property_validate(struct work_struct *work)
struct mod_hdcp_display_query query;
struct amdgpu_dm_connector *aconnector = hdcp_work->aconnector;
if (!aconnector)
return;
mutex_lock(&hdcp_work->mutex);
query.encryption_status = MOD_HDCP_ENCRYPTION_STATUS_HDCP_OFF;